body,div,p{
    margin: 0;
    padding: 0;
}
#form1{
    display: block;
    margin: 20px auto;
    text-align: center;
}


/*//遮罩部分*/
.full-mask{
    position: fixed;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,.4);
    z-index: 100;
}
.alert-box{
    width: 400px;
    height: 300px;
    border:1px solid #ddd;
    position: absolute;
    left:50%;
    top:50%;
    margin-left:-200px ;
    margin-top:-150px;
}
.alert-content-box{
    box-sizing: border-box;
    padding: 10px 10px;
    width: 100%;
    height: 200px;
    background-color: azure;
    font-size: 20px;
    color: #555;
}
.alert-button{
    width: 100%;
    height: 100px;
    margin-bottom: 0;
    text-align: center;
    border-top: 1px solid #dddddd;
    background-color: aquamarine;
    line-height: 100px;
    font-size: 30px;
    cursor: pointer;
}
